The Human Immunodeficiency Virus Type 1 Envelope Confers Higher Rates of Replicative Fitness to Perinatally Transmitted Viruses than to Nontransmitted Viruses

Xiaohong Kong, John T. West, Hong Zhang, Danielle M. Shea, Tendai J. M`soka and Charles Wood

Journal of Virology 82 ( 23 ): 11609 - 11616 , 2008